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| Titel |
Are there urban signatures in the tropospheric ozone column products derived from satellite measurements? |
| VerfasserIn |
J. Kar, J. Fishman, J. K. Creilson, A. Richter, J. Ziemke, S. Chandra |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1680-7316
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| Digitales Dokument |
URL |
| Erschienen |
In: Atmospheric Chemistry and Physics ; 10, no. 11 ; Nr. 10, no. 11 (2010-06-14), S.5213-5222 |
| Datensatznummer |
250008525
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| Publikation (Nr.) |
 copernicus.org/acp-10-5213-2010.pdf |
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| Zusammenfassung |
| In view of the proposed geostationary satellite missions to monitor air
quality from space, it is important to first assess the capability of the
current suite of satellite instruments to provide information on the urban
scale pollution. We explore the possibility of detecting urban signatures in
the tropospheric column ozone data derived from Total Ozone Mapping
Spectrometer (TOMS)/Solar Backscattered Ultraviolet (SBUV) and Ozone
Monitoring Instrument (OMI)/Microwave Limb Sounder (MLS) satellite data. We
find that distinct isolated plumes of tropospheric ozone near several large
and polluted cities around the world may be detected in these data sets. The
ozone plumes generally correspond with the tropospheric column NO2
plumes around these cities as observed by the Scanning Imaging Absorption
Spectrometer for Atmospheric Chartography (SCIAMACHY) instrument. Similar
plumes are also seen in tropospheric mean ozone mixing ratio distribution
after accounting for the surface and tropopause pressure variations. The
total column ozone retrievals indicate fairly significant sensitivity to the
lower troposphere over the polluted land areas, which might help explain
these detections. These results indicate that ultraviolet (UV) measurements
may, in principle, be able to capture the urban signatures and may have
implications for future missions using geostationary satellites. |
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